03/04 motor and trans in an 01

1slovert

1slovert

Member
#1
#1
long story short, i have a 2001 cobra with a rod knock and may have found an 04 motor and trans. ive been doing some research to make the motor and trans work in my car and am curious to see what everyone has to say and looking for some input. heres what ive come up with so far to get everything to work. ill also add what i've read up on ways to "fix the problem."

Motor:
Alternator wire is shorter on the 04
-extend the wire
or
-install an 03/04 alternator pigtail

Intercooler pump will need to be wired up
-run a relay & wiring it to turn on when the key turns on
(how would i go about doing this or does someone have/know of another way)

EGR Wiring/Position is different
-Delete kit (i already have no cats but is there a way to not have a CEL with the EGR delete kit?)
-Extend the wiring

Theres an IAT2 Sensor on the 04
-Haven't been able to find out much for this

Power Steering Lines need to be modified
-Haven't found much out about this either

Trans (T56):
Reverse lock out
-Haven't found out much on this

Wiring harness
-Still looking into this

If there's anything else that needs to be done please let me know. Any input and information will be GREATLY appricated. If this deal falls through, i've already priced out an MMR 5.0 stroker short block and will rebuild my trans. I'm on a little bit of a budget but i gotta do what i gotta do to get the car ready for the summer so if i gotta stretch my budget i will.
:rock:
 
1slovert

1slovert

Member
#4
#4
04 orange cobra said:
Does the motor come with the 04' wire harness and pcm ??? If not can you get it ??
Click to expand...
ok i talked to the guy and he said the PCM and harness is not available. ive been doing more research and talking with different people and the best full description or doing the swap MINUS THE TRANS is this:

Alternator: I bought the pigtail from tousleyfordparts, in fact, I bought most of the ford parts I needed from them. I just extended the wiring myself. It is straight forward and very easy to do. I got the pigtail because at the time I didn't know if the connectors were the same from year to year. I never really checked to see if they were or not, I just clipped the wires and extended them and then wrapped up my wiring with the black plastic wiring hiders to make things look cleaner and so no wires were exposed.

Relay: All you have to do is run a wire from the intercooler pump pigtail to the fuse box under the hood. Get a 30amp? fuse relay from ford for the intercooler pump. Run the wire into where you're putting your relay into. Its quite simple, there are extra spots in the fuse box to do so. It is "key on", so if the key is turned on and the cars not running, the intercooler pump still will be running.

EGR: I opted to delete the egr on my car for a few reasons. One, I didn't want to dear with the headache of a modified egr line from the exhaust. Two, I too wasn't sure about the wiring, and finally, with the egr gone, the bracket on the side of the blower can be removed since that is all egr stuff, and it makes it cleaner. I live in PA, and as some parts don't have emissions, others do. I live in a part that does have emissions, but I drive the car less than 5k per year, so, I don't need any tests done on it. In fact, where I go, the car doesn't even go into the garage.

IAT2: I didn't install it. there's no plug for it because I used my stock harness, so, I simply didn't install it. I actually still have it sitting in a box downstairs. haha.

Transmission: I simply stayed with the 5speed transmission. I didn't have to mess with the harnesses. If you're putting in a 6speed and you know the harnesses are different, then I would suggest putting in an 03 engine harness. With that, I believe you need an 03 computer then; I'm not 100% sure of it, but you should ask your tuner about it.

If you stick with the 5speed, your 01 computer and 01 harness, all you need to do is a bit of extra wiring.

If you go with the 03 harness, you might need a computer. I do believe though, the tuner I had, had to program something into the computer for the intercooler pump to turn on and off with the key? He said that the 03 computers have it pre-programmed in to turn the intercooler pump on and off with the car...???

Power Steering: Your power steering line will have to be modified a bit as I'm sure you've read. Or you could pay fords ridiculous price for the 03 one.

On a side note: I didn't use most of the 03 heat exchanger lines. I bought what I am going to call "hose" because I can't think of what its called now at autozone by the foot for the heat exchanger lines. You will need the expensive aluminum ones that hug the block though



chances are ill stick with the 5 speed and rebuild it. it will be cheaper, easier, and lighter.

thats just one person and im doing more information but if any has ANY input or information please post it up. im trying to get as much information before i start the swap.
THANKS!!
 
06LLGT

06LLGT

Member Plus
#5
#5
You can wire the reverse lockout solenoid to the brakes or a switch that you will flip or push down will shifting into reverse. Or you could leave it out and use a bit of muscle to shift into reverse.
 
scotts99snake

scotts99snake

VIP / Donor
#6
#6
I had a T56 in my 99 cobra without the lockout solenoid hooked up. You get used to it quickly. No biggie. I just did the egr delete on my 03 cobra last week. It can be tuned off so it will not throw a CEL.
 
1slovert

1slovert

Member
#7
#7
ok cool. thanks. im gonna keep doing research and post when i figure out what im gonna do with the car once i have all the cash. like i said previously any and all input is helpfull!
thanks,
steve
 
stang99

stang99

Well-Known Member
#10
#10
u need both harnesses....but make sure u dont get another pcm because then ur gonna have big problems with the security system i been through it already.
 
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